| 单词 | nitrogen fixation |
| 释义 | nitrogen fixation noun[U] chemistryspecializeduk/ˈnaɪ.trə.dʒən fɪkˌseɪ.ʃən/us/ˈnaɪ.trə.dʒən fɪkˌseɪ.ʃən/theprocessby whichnitrogenfrom theatmosphereischangedeithernaturallyor inindustryintocompoundsthat are used in severalprocesses 固氮Physical & chemical processes
Examplesofnitrogen fixationnitrogen fixation Therefore,nitrogenfixationis unimportant as a source of this element for savanna plants. From theCambridge English Corpus These hypotheses will be tested as additional genomic, biochemical and geological evidence sheds more light on the evolution ofnitrogenfixation, photosynthesis and cyanobacteria. From theCambridge English Corpus The objective of the present experiment was to assess seed composition andnitrogenfixationunder these conditions. From theCambridge English Corpus Thus, at this point, the phylogenetic and molecular evidence indicate thatnitrogenfixationarose before photosynthesis, but more work on this question is needed. From theCambridge English Corpus The evolution ofnitrogenfixationalso appears to have been a precondition for the evolution of (bacterio)chlorophyll-based photosynthesis. From theCambridge English Corpus This model involves the interplay of denitrification, nitrification andnitrogenfixation, but does not explicitly consider the influence of tracemetal availability for requisite enzyme activity. From theCambridge English Corpus By providing soil cover andnitrogenfixationthey not only improve livestock feed but also help prevent soil degradation. From theCambridge English Corpus These results indicate that brassica residues could affect critical microbial processes, including nitrification,nitrogenfixationand mycorrhizal symbioses. From theCambridge English Corpus Technologies includenitrogenfixation, biocontrol of pathogens and pests, fermentation, post harvest microbiology and more. From theCambridge English Corpus Stabilizing agricultural energy needs: role of forages, rotations, andnitrogenfixation. From theCambridge English Corpus Nitrogenfixationthroughout growth, and varietal differences innitrogenfixationby the rhizosphere of rice planted in pots. From theCambridge English Corpus Can biologicalnitrogenfixationsustain agriculture in the tropics? From theCambridge English Corpus The acetylene reduction assay for measuringnitrogenfixationin waterlogged soil. From theCambridge English Corpus It appears thatnitrogenfixationis more sensitive to infection than nitrogen assimilation. From theCambridge English Corpus So, for example, several species will typically performnitrogenfixationfunctions, but each will perform those functions differently depending upon climatic conditions. From theCambridge English Corpus These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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